Remote code execution in Microsoft XML Core Services

Published: 2012-06-12 00:00:00 | Updated: 2017-01-10
Severity Critical
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2012-1889
CVSSv3 8.9 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]
CWE ID CWE-119
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software Microsoft XML Core Services
Vulnerable software versions Microsoft XML Core Services 6.0
Microsoft XML Core Services 4.0
Microsoft XML Core Services 3.0
Microsoft XML Core Services 5.0
Vendor URL Microsoft

Security Advisory

1) Memory corruption

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to boundary error in XML Core Services (MSXML) when attempting to access an object in memory that has not been initialized. A remote attacker can create a specially crafted Web site, trick the victim into viewing it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

Remediation

Install update from vendor's website.

External links

https://technet.microsoft.com/en-us/library/security/ms12-043

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